<template>
	<view class="preview" v-if="currentInfo">
		<swiper circular :current="currentIndex" @change="swiperChange">
			<swiper-item v-for="(item,index) in storgClassList" :key="index">
				<image v-if="readImgs.includes(index)" @click="maskChange" :src="item" mode="aspectFill"></image>
			</swiper-item>
		</swiper>

		<view class="mask" v-if="maskState">
			<view class="goBack" @click="goBack" :style="{top:getStatusBarHeight()+'px'}">
				<uni-icons type="back" color="#fff" size="20"></uni-icons>
			</view>
			<view class="count">{{currentIndex+1}} / {{storgClassList.length}}</view>
			<view class="time">
				<uni-dateformat :date="new Date()" format="hh:mm"></uni-dateformat>
			</view>
			<view class="data">
				<uni-dateformat :date="new Date()" format="MM月dd日"></uni-dateformat>
			</view>
			<view class="footer">
				<view class="box" @click="clickDownload">
					<uni-icons type="download" size="28"></uni-icons>
					<view class="text">下载</view>
				</view>
			</view>
		</view>

	</view>
</template>

<script setup>
	import {
		ref
	} from 'vue';
	import {
		getStatusBarHeight
	} from "@/utils/system.js"
	import {
		onLoad,onUnload,onShareAppMessage,onShareTimeline
	} from "@dcloudio/uni-app"
	import {
		apiGetSetupScore,
		apiWriteDownload,
		apiDetailWall
	} from "@/api/apis.js"

	const maskState = ref(true);
	
	
	
	
	const currentId = ref(null);
	const currentIndex = ref(0);
	const readImgs = ref([]);
	const currentInfo = ref(null);
	

	const storgClassList = uni.getStorageSync("storgClassList") || [];
	
	
	//初始加载
	onLoad((e) => {
		currentId.value = e.id;
		currentIndex.value = storgClassList.findIndex(item => item == currentId.value);
		currentInfo.value = storgClassList[currentIndex.value];
		readImgaFun();
	})


	//返回上一页
	const goBack = () => {
		uni.navigateBack({
			success:()=>{
				
			},
			fail:(err)=>{
				uni.reLaunch({
					url:"/pages/index/index"
				})
			}
		});
	}


	//滑动事件
	const swiperChange = (e) => {
		currentIndex.value = e.detail.current;
		currentInfo.value = storgClassList[currentIndex.value];
		uni.setStorageSync("storgClassList", currentInfo.value);
		readImgaFun();
	}

	//前后图片index读取代码
	function readImgaFun() {
		readImgs.value.push(
			currentIndex.value <= 0 ? storgClassList.length - 1 : currentIndex.value - 1,
			currentIndex.value,
			currentIndex.value >= storgClassList.length - 1 ? 0 : currentIndex.value + 1
		);
		readImgs.value = [...new Set(readImgs.value)];
	}


	//点击下载
	const clickDownload = async () => {
		// #ifdef H5
		uni.showModal({
			content: "请长按保存壁纸",
			showCancel: false
		})
		// #endif
	
		// #ifndef H5
		uni.showModal({
			content: "请长按保存壁纸\n壁纸url:"+currentInfo.value,
			showCancel: false
		})
		// #endif
	}
	
	//分享给好友
	onShareAppMessage((e)=>{
		return {
			title:"GoTo刷图X",
			path:"/pages/preview/preview?id="+currentId.value+"&type=share"
		}
	})
	//分享朋友圈
	onShareTimeline(()=>{
		return {
		    title:"GoTo刷图X",
			query:"id="+currentId.value+"&type=share"
		}
	})
	
	
	onUnload(()=>{
		uni.removeStorageSync("storgClassList")
	})
</script>

<style lang="scss" scoped>
	.preview {
		width: 100%;
		height: 100vh;
		position: relative;

		swiper {
			width: 100%;
			height: 100%;

			image {
				width: 100%;
				height: 100%;
			}
		}

		.mask {
			&>view {
				position: absolute;
				right: 0;
				left: 0;
				margin: auto;
				color: #fff;
				width: fit-content;
			}

			.goBack {
				width: 38px;
				height: 38px;
				background: rgba(0, 0, 0, 0.5);
				left: 30rpx;
				margin-left: 0;
				border-radius: 100px;
				top: 0;
				backdrop-filter: blur(10rpx);
				border: 1rpx solid rgba(255, 255, 255, 0.3);
				display: flex;
				align-items: center;
				justify-content: center;

			}

			.count {
				top: 10vh;

				background: rgba(0, 0, 0, 0.3);
				font-size: 28rpx;
				border-radius: 40rpx;
				padding: 8rpx 28rpx;
				backdrop-filter: blur(10rpx);
			}

			.time {

				font-size: 140rpx;
				top: calc(10vh + 80rpx);
				// font-weight: 100;
				line-height: 1em;
				text-shadow: 8rpx 8rpx rgba(0, 0, 0, 0.3);
			}

			.data {
				font-size: 34rpx;
				top: calc(10vh + 230rpx);
				text-shadow: 4rpx 4rpx rgba(0, 0, 0, 0.3);
			}

			.footer {
				background: rgba(255, 255, 255, 0.8);
				bottom: 10vh;
				width: 65vw;
				height: 120rpx;
				border-radius: 120rpx;
				color: #000;
				display: flex;
				justify-content: space-around;
				align-items: center;
				box-shadow: 0 4rpx 0 rgba(0, 0, 0, 0.1);

				.box {
					display: flex;
					flex-direction: column;
					align-items: center;
					justify-content: center;
					padding: 2rpx 12rpx;

					.text {
						font-size: 26rpx;
						color: $text-font-color2 ;
					}
				}
			}
		}

		.popHeader {
			display: flex;
			justify-content: space-between;
			align-items: center;

			.title {
				color: $text-font-color2;
				font-size: 35rpx;
				font-weight: bold;
			}

			.close {
				padding: 6rpx;
			}
		}

		.infoPopup {
			background: #fff;
			padding: 30rpx;
			border-radius: 30rpx 30rpx 0 0;
			overflow: hidden;

			scroll-view {
				max-height: 60vh;

				.content {
					.row {
						display: flex;
						padding: 16rpx 0;
						font-size: 32rpx;
						line-height: 1.7em;

						.lable {
							color: $text-font-color3;
							width: 140rpx;
							text-align: right;
							font-size: 30rpx;
						}

						.value {
							flex: 1;
						}

						.roteBox {
							display: flex;
							align-items: center;

							.score {
								font-size: 26rpx;
								color: $text-font-color2;
								padding-left: 10rpx;
							}
						}

						

						.class {
							color: $brand-theme-color;
						}
					}

					.copyright {
						font-size: 28rpx;
						padding: 20rpx;
						background: #F6F6F6;
						color: #666;
						border-radius: 10rpx;
						margin: 20rpx 0;
						line-height: 1.6em;

					}
				}
			}
		}

		

	}
</style>